Airtight cover for containers



May 30, 1939. s. KAZANJIAN AIRTIGHT COVER FOR CONTAINERS Filed Sept. 1, 1938 INVENTOR Suarez Kendra/ad.

ATTORNEY Patented May 30, 1939 UNITED STATES PATENT QFFICE Claims.

This invention relates to new and useful improvements in an air tight cover for containers.

The invention has for an object the construction of an air tight cover which is characterized 5 by an outer cap for engaging over the neck of a container and associated in a particular manner with an inner cap, an arrangement being provided for tightly clamping the inner cap upon the neck of the bottle.

More specifically, the invention contemplates the use of a band of flexible metal disposed between the outer and inner caps and encircling the inner cap and adapted to comprise the means for tightly clamping the inner cap on the neck of the bottle.

A further object of this invention resides in the provision of certain cooperative means between the ends of the band for holding the band in a taut condition.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:-

Fig. 1 is a side elevational View of an air tight cover constructed according to this invention and shown mounted on the neck of a container.

Fig. 2 is a horizontal sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a fragmentary vertical sectional view taken on the line 3-3 of Fig. 2.

35 Fig. 4 is a fragmentary vertical sectional view on the line I4 of Fig. 1.

Fig. 5 is a fragmentary vertical sectional view on the line 5-5 of Fig. 2.

The air tight cover for containers, according 40 to this invention, includes an outer cap ID for engaging the neck II of a container. An inner cap I2 of relatively flexible material is disposed within the outer cap and is adapted to engage over the neck II. A band of flexible material I3 is disposed between said caps Ill and I2 and is adapted to clamp the inner cap I2 tightly against the neck ll Cooperative means are arranged between the ends of the band l3 for holding the band tautly in position.

This means includes a slot I4 formed in the end portion of one of the ends of the band and receiving a portion I3 from the other end of the band. The arrangement is such that because of this interlocking of the end portions of the band it is possible to pull the ends of the band in opposite directions and so tightly engage the band in position. After the band is tightly engaged it is proposed that the end portion I3 be bent outwards, as illustrated in Fig. 2, for permanently holding the band in the taut condition.

The inner cap I2 has an end wall I2 engaging over the end of the container neck II, and a side wall I2 extending around the sides of the neck II. The flexible band I3 is engaged around the side wall I2 The outer cap It has an end wall Ill engaged across the end wall I2 of the inner cap, and a side wall lo which is superimposed over the side wall I2 of the inner cap.

The inner cap I2 may be of relatively soft material, such as paper, metal or other suitable material to act as a seal. The outer cap I0 may be of stiff metal or other strong material.

Cooperative means are provided between the band I3 and the outer cap ID for holding same fixed in relatively adjusted positions. These means include a hook portion IS formed on one end of the band I3 and engaged through an opening l5 formed in the side wall 10 of the outer cap. The band I3 is also formed with a tongue 16 stamped out from'the material thereof and engaged through an opening I] in the side wall Iil of the outer cap for assisting in holding these parts in relatively fixed positions.

The air tight cap, according to this invention, is engaged upon a container in the following manner. The tongue I6 of the band I3 is normally in a radially extended position as indicated by the dot and dash lines I6. In this condition the tongue projects through the opening IT. The hook I3 is tightly engaged upon the material of one side of the opening I5. The band I3 is expanded and loose. The cover in this condition is engaged over the neck I I. The outer cap Ill is formed with a large opening I8 in the side wall Ifl thereof. Through this opening it is possible to grip the end I3 of the band I3. This end I3 is normally loosely extended through the slot I4.

The end l3 is tightly pulled in a clockwise direction, as viewed in Fig. 2. This causes contraction of the band and causes it to tightly press the side wall I2 of the inner cap against the outer face of the neck II. The end portion I3 is then bent counter-clockwise, as viewed in Fig. 2, so that it engages the material at the end of the opening I4. This serves to hold the band 13 permanently in position. The extended end of the tongue I6 is then bent laterally to the position as shown by the full lines in Fig. 2. The,

cover is now securely on the container. I

It is advisable that the outer end of the neck I I be formed with a bead ll which will assist in preventing the cover from slipping off the neck.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1 An air tight cover for a container, comprising an outer cap for engaging over the neck of a container, an inner cap of relatively flexible material within said outer cap and adapted to engage over the neck of said container, a band of flexible metal between said caps and encircling said inner cap and adapted to clamp the inner cap tightly against said neck, cooperative means between the ends of said band for holding the'band in a very taut condition, and cooperative means between said band and outer cap for holding same fixed in relatively adjusted positions.

2. An air tight cover for a container, comprising an outer cap for engaging over the neck of a container, an inner cap of relatively flexible material within said outer cap and adapted to engage over the neck of said container, a band of flexible metal between said caps and encircling said inner cap and adapted to clamp the inner cap tightly against said neck, cooperative means between the ends of said band for holding the band in a very taut condition, and cooperative means between said band and outer cap for holding same fixed in relatively adjusted positions, said band being formed with a slot near one end portion thereof,-and the other end portion of the band being reduced and engaged through this slot whereby the ends of the band may be relatively pulled in Opposite directions to clamp the band in position.

3 An air tight cover for a container, comprising an outer cap for engaging over the neck of a container, an inner cap of relatively flexible material within said outer cap and adapted to engage over the neck of said container, a band of flexible metal between said caps and encircling said inner cap and adapted to clamp the inner cap, tightly against said neck, cooperative means between the ends of said band for holding the band in a very taut condition, and cooperative means between said band and outer cap for holding same fixed in relatively adjusted positions, said band being formed with a slot near one end portion thereof, and. the other end portion of the band being reduced and engaged through this slot whereby the ends of the band may be relatively pulled in opposite directions to clamp the band in position, the wide end of said band being formed with a hook portion engaged through an opening in the side Wall of the outer cap for anchoring this end of the band.

- 4. An air tight cover for a container, comprising an outer cap for engaging over the neck of a container, an inner cap of relatively flexible material within said outer cap and adapted to engage over the neck'of said container, a band of flexible metal between said caps and encircling said inner cap and adapted to clamp the inner cap tightly against said neck, cooperative means between the ends of said band for holding the band in a very taut condition, and cooperative means between said band and outer cap for holding same fixed in relatively adjusted positions, said band being formed with a slot near one end portion thereof, and the other end portion of the band being reduced and engaged through this slot whereby the ends of the band may be relatively pulled in opposite directions to clamp the band in position, the wide end of said band being formed with a hook portion engaged through an opening in the side Wall of the outer cap for anchoring this end of the band, and the reduced end of the band being bendable against the end portion of the material of the slot for permanently securing the band in position.

5. An air tight cover for a container, comprising an outer cap for engaging over the neck of a container, an inner cap of relatively flexible material within said outer cap and adapted to engage over the neck of said container, a band of flexible metal between said caps and encircling said inner cap and adapted to clamp the inner cap tightly against said neck, cooperative means between the ends of said band for holding the band in a tween said band and outer cap for holding same fixed in relatively adjusted positions, comprising a tongue stamped from the material of the band and engaged through a slot in the outer cap and having its outer end portion bent against the face of the cap.

SOUREN KAZANJIAN.

. ,45 very taut condition, and cooperative means be- 

